Phineas p



P. P. MAST.-

GULTIVATOR.

(No ModeL) No. 361,307 Patented Apr. 19, 1887.

S E m W W TOR m M .dtto'rneys N. Pzrtns Phoimutbogqpher, via-pin n. c.

UNITED STATES PATENT OFFICE.

PHINEAS P. MAST, OF SPRINGFIELD, OHIO, ASSIGNOR TO P. P. MAST & COMPANY,OF SAME PLACE.

OULTIVATOR.

. I SPECIFICATION forming part of LettersPatent No. 361,307 dated April19, 1887.

. Application filed March 1, 1887. Serial No. 129,317. (No model.)

To aZZ whom it may concern:

Be it known that I, PHINEAS P. MAST, a citizen of the United States,residing at Springfield, in the county of Clark and State of Ohio,haveinvented certain new anduseful Improvements in Cultivators, of whichthe following is a specification, reference being bad therein to theaccompanying drawings.

On the 27th of December, 1886, Letters Patent were granted to me forimprovements in cultivators, and numbered 354,717, in which were shown across-head and a beam-bracket of peculiar construction at the pointwhere the two are fitted together.

This invention relates, also, to an improvement in cultivators, havingspecial reference to the construction of the cross-head which carriesthe shovel-standards and to the beam or beam-bracket to which thecross-head is pivotally connected.

Myinvention consists, essentially, of acrosshead having about midwaythereof an opening to receive the-beam or beam-bracket, and providedwith enlarged surfaces above and below that opening, and of the beam orbeambracket having enlarged upper and lower disk-like surfaces, whichfit smoothly against the surfaces of the cross-head, the beam orbeam-bracket and cross-head being pivotally connected together.

In the accompanying drawings, forming a part of this specification, andon which like letters of reference indicate the same features, Figure 1represents a side elevation of aportion of a cultivatonbeam or abeam-bracket, also showing the cross-head in vertical transversesection; Fig. 2, a longitudinal vertical section of the cross-head,showing the beam or beambracket in transverse vertical section. Fig. 3is a top plan view of the cross-head.

The letter A designates the cross-head, the

1 same consisting of a bar constructed of cast or malleable iron,preferably thelatter,and having at each end beads or shoulders B, toform seats, into which the shanks of theshovel-standards are fitted, oneseat being horizontal and the other vertical. In some instances theseseats are both horizontal or both vertical or one horizontal and theother vertical, as in the present illustrations. About the middle thisbar is divided and an opening formed therein, the upper and lower sidesof the bar forming enlarged and substantially flat surfaces, againstwhich the corresponding surfaces of the beam or beam-bracket are fitted.The cross-head is bored vertically to receive a coupling-bolt, uponwhich it turns back and forth, and by which it is pivotally connectedwith the beam or beam-bracket. This cross-head is designed to be usedparticularly with cultivators in which an alignment-rod is used tomaintain the parallelism between the cross-head and the axle ofthe'machine. To this end alug, C, is formed, by preference integrallywith the head, to which the rod is connected. The letter D refers to thecultivator-beam, or, more strictly speaking, and accordingto thedrawings, to the bracket which is securedto the beam proper, D. When thebeam proper is made separate from the bracket, the hub-like portion,presently to be mentioned, is formed on the bracket; but should the partto whichthe handle is secured be formed in one piece with the beamproper, then the hub is formed on the beam. The former constructionispreferred. This bracket consists of a sleeve, F, and a curved arm, F,the former receiving the rear end of the beam proper and the latterconnecting with thehandle. Where these parts join, a hub, G, is formed,and the ends of this hub are enlarged to form bearing-surfaces H. Thehub is centrally bored to receive the coupling-bolt, and the surfaces Hare fitted snugly to the enlarged surfaces of the cross-head, wherebythe two parts are fitted together in such manner that the cross-head ismerely capable of oscillating on the connecting-bolt, but is heldagainst rising at one end and lowering at the other. In other words, alltwisting tendency between the cross-head and the beam is overcome andthe parts fitted snugly and held strongly together. This prevents eithershovel from rising should it meet an unusually hard patch of ground. Thealignment-rod is shown at I, being broken off. 1

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination, with the cultivatorwith enlarged upper and lowerends, of a crosshead having an opening therethrough to receive saidhub, and enlarged at the upper-and lower ends of said opening to formbearing-surfaces to match with the enlarged ends of said hub, and a boltto connect the parts together.

2. The eombination,with a cultivator-beam or beam-bracket having a hubwhose upper and lower ends are enlarged to form flat bearing-surfaces,of a cross-head having an opening therethrough to receive saidhub,enlarged at the upper and lower ends of said opening and flattenedat the enlarged portions, whereby the head is prevented from twistingwith respect to the hub, and a bolt to pivotally conmeet the partstogether.

